Positioning method for center frame of cutting machine for machining

Abstract

The invention discloses a positioning method for a center frame of a cutting machine for machining. According to the positioning method, an ejection cylinder (1) is involved. The ejection cylinder (1) is cylindrical on the whole. A sleeve piece (2) is connected to one end face of the ejection cylinder (1). An installation groove (3) is formed in the other end face of the ejection cylinder (1). The two side faces, on the ejection cylinder (1), of the installation groove (3) are parallel and symmetrical with respect to the axis of the ejection cylinder (1). A bearing (5) is mounted in the installation groove (3). The two ends of the bearing (5) are connected to the two side faces of the installation groove (3) of the ejection cylinder (1). The bearing (5) is sleeved with a rolling wheel (4). The radius of the rolling wheel (4) is larger than the distance from the axis of the bearing (5) to the end face, where the installation groove (3) is located, of the ejection cylinder (1). The installation groove is formed in the ejection cylinder, and the bearing is mounted in the installation groove and sleeved with the rolling wheel, so that friction force between an ejection wheel and a workpiece is converted into rolling friction force, the probability that the workpiece gets stuck is lowered, and the workpiece can be machined easily.

Description

technical field [0001] The invention relates to an auxiliary device in the machining and cutting process, in particular to a positioning method for the center frame of a machining and cutting machine tool. Background technique [0002] In the machining industry, especially in the machining of slender workpieces, steady rests are often used. The center frame is an auxiliary device for radially supporting the rotating workpiece during processing. When processing slender shaft parts, the length-to-diameter ratio L / D>15, in order to prevent the workpiece from being bent and deformed by the radial cutting force, it is commonly used The steady frame is used as an auxiliary support to increase the rigidity of the workpiece. During processing, there is no relative axial movement with the workpiece. The steady frame should be fixed on the bed, and the center frame should be roughly aligned with a needle. After lubricating oil is applied, the bed rotates at a low speed to adjust t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the force of the top column of the center frame is difficult to adjust when clamping the workpiece, and the workpiece is easily loosened to form an ellipse on the end face of the workpiece or locked due to excessive force, and to provide a machining and cutting machine tool center. rack positioning method

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